HMC987LP5ETR

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HMC987LP5ETR are clock/timing devices used to interconnect multiple low-power and low-voltage domains. They enable reliable data transmission between domains via innovative features such as back-driveable output enable, adjustable frequency/phase shifts, and zero delay skew solutions. In this article, we will discuss the application field and working principle of HMC987LP5ETR clock buffers, drivers.

Application Field

Clock buffers, drivers, and other clock/timing solutions are used in a variety of applications including cellular, automotive, medical, broadcast & media, industrial, military & aerospace, and telecom. HMC987LP5ETR clock buffers, drivers, provide optimized solutions for low power and low voltage clock domains through their adjustable frequency/phase shifts, back-driveable output enable, and zero delay skew solutions.

The HMC987LP5ETR are used in applications such as:

• Low-voltage differential signaling (LVDS) circuits,
• Phase-locked loop (PLL) circuits,
• Digital phase-shifters,
• PCI Express (PCIe) circuits,
• Serial peripheral interface (SPI) buses.

These clock buffers, drivers, provide a means for controlling the transfer of data between clock domains by adjusting the phase and frequency of the clock signals.

Working Principle

The HMC987LP5ETR provide a means for controlling the transfer of data between clock domains by adjusting the phase and frequency of the clock signals. The devices employ a differential input, which allows for operation in multiple low-voltage domains, at lower total system power. They also offer unique features such as back-driveable output enable, adjustable phase/frequency shifts, and zero delay skew solutions.

The HMC987LP5ETR provides differential outputs to ensure compatibility with LVDS circuits. The devices also provide up to sixteen output banks, which are adjustable in 0.1° increments for phase control. The output banks can be configured for fractional divider ratios, and the output amplitude can be adjusted via an external resistor. The adjustable outputs can be disabled via the back-driveable output enable.

The HMC987LP5ETR also provide an integrated analog phase-locked loop (PLL) circuit for frequency control. This circuit can be configured to provide adjustable frequency or phase outputs up to 625 MHz, allowing for precise control of the clock signals. The device also provides a configurable zero delay skews circuit, allowing for both fine- and coarse-delay control of the clock signals.

In addition, the HMC987LP5ETR also provide multiple enable/disable options, allowing for further control of the clock signal. By utilizing the enable/disable options, the device can be configured to meet the exact requirements of the application. These features make the HMC987LP5ETR an ideal solution for low power, low voltage clock/timing applications.

Conclusion

HMC987LP5ETR clock buffers, drivers, provide optimized solutions for low power and low voltage clock domains. These devices employ a differential input, provide up to sixteen adjustable output banks, and an integrated PLL circuit for frequency control. They also offer unique features such as back-driveable output enable, adjustable phase/frequency shifts, and zero delay skew solutions. These features make the HMC987LP5ETR an ideal solution for low power, low voltage clock/timing applications.

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